indexo.dev

chemguide.co.uk

.uk crawl

First seen 2026-05-08 · Last seen 2026-05-08 · ok HTTP/1.1 200 3165 ms crawled 2026-05-15

GB · 82.71.205.12 · AS13037 Zen Internet Ltd

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
chemguide: helping you to understand Chemistry - Main Menu
Description
Main menu of a site aimed to help advanced level chemistry students to understand chemistry

Technology

Server
nginx

Registration

Registrar
Zen Internet Limited
Created
2000-04-27
Expires
2027-04-27 342 days left
Updated
2025-08-13
Name servers
  • ns0.zen.co.uk.
  • ns1.zen.co.uk.

DNS records live

NS
  • ns0.zen.co.uk
  • ns1.zen.co.uk
MX
  • 1 mail.chemguide.co.uk

Email authentication weak

SPF
v=spf1 include:_cphspf.zen.co.uk ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-03-24 to 2026-06-22
Expires in 33 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://chemguide.co.uk/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (1)

Linked from (2)